[Glass] Missing methods in PluggableSet?

[Jupiter Jones]

(#( 1 2 3 4 ) groupedBy: [ :i | i even ]) keys

This throws a DNU since PluggableSet has no accessors for hashBlock (or equalsBlock).

Not sure how to contribute the simple fix - it’s in the Squeak-Collections-Unordered package.

Cheers,

Jupiter